20213331002103 has 4 divisors (see below), whose sum is σ = 26951108002808. Its totient is φ = 13475554001400.

The previous prime is 20213331002093. The next prime is 20213331002107. The reversal of 20213331002103 is 30120013331202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20213331002103 - 2¹⁰ = 20213331001079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20213331002103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213331002107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368888500348 + ... + 3368888500353.

It is an arithmetic number, because the mean of its divisors is an integer number (6737777000702).

Almost surely, 2^{20213331002103} is an apocalyptic number.

20213331002103 is a deficient number, since it is larger than the sum of its proper divisors (6737777000705).

20213331002103 is an equidigital number, since it uses as much as digits as its factorization.

20213331002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737777000704.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20213331002103 its reverse (30120013331202), we get a palindrome (50333344333305).

The spelling of 20213331002103 in words is "twenty trillion, two hundred thirteen billion, three hundred thirty-one million, two thousand, one hundred three".